There is a DELETE and EDIT icon in <div class="accordion-heading"> on click of each of these icon,either a deleteTemplate or an editTemplate are supposed lo load and accordion expands.
so that <div id="collapseOne{{_id}}" class="accordion-body collapse" style="height: 0px; ">
becomes <div id="collapseOne{{_id}}" class="accordion-body in collapse" style="height: auto; ">
(class "in" and height:auto) this is working fine in chrome and firefox, issue is in IE.
That is on clicking EDIT icon content in accordion is not "opening"
Collapse was initially broken in IE which i fixed by modifying bootstrap Css as shown